JSON to YAML Converter

Convert JSON config, API payloads, and structured data to YAML. You can also convert common YAML back to JSON. Advanced YAML features such as anchors, tags, and complex multiline blocks are intentionally not supported.

JSON to YAML
YAML to JSON
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When to Convert JSON to YAML

JSON is common in APIs and machine-generated data. YAML is common in configuration files, CI workflows, Kubernetes manifests, Docker Compose files, and documentation examples. Converting JSON to YAML makes nested config easier for humans to scan and edit.

This tool is designed for practical developer snippets: objects, arrays, strings, numbers, booleans, and null values. Review the converted output before pasting it into production configuration, especially when indentation, multiline strings, anchors, aliases, tags, or other advanced YAML features matter.

For YAML to JSON conversion, treat the result as a convenience parser for common config structures. If your file uses advanced YAML syntax, validate it with the parser used by your deployment system before shipping.

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FAQ

Does this converter upload my data?
No. Conversion runs locally in your browser with JavaScript.
Is YAML the same as JSON?
No. JSON is stricter and easier for machines to parse. YAML is more readable for configuration files, but indentation and special syntax can change meaning.
Can every YAML file convert cleanly to JSON?
Not always. Advanced YAML features such as anchors, aliases, tags, and complex multiline blocks may need a full YAML parser. This page supports common object, array, scalar, and nested config structures.
Why does indentation matter in YAML?
YAML uses indentation to define structure. Two spaces are the safest default for config files and documentation examples.